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Mobile communication system protection switching method based on C-RAN framework

A mobile communication system and protection switching technology, applied in wireless communication, electrical components, etc., can solve the problem that the C-RAN architecture mobile communication system cannot meet the protection switching time, so as to reduce the risk of failure and improve stability and reliability Effect

Active Publication Date: 2016-04-20
FENGHUO COMM SCI & TECH CO LTD
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Problems solved by technology

[0013] The technical problem to be solved by the present invention is the problem that the DWDM-based C-RAN architecture mobile communication system cannot meet the requirement that the protection switching time is less than 50ms

Method used

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  • Mobile communication system protection switching method based on C-RAN framework
  • Mobile communication system protection switching method based on C-RAN framework
  • Mobile communication system protection switching method based on C-RAN framework

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Embodiment Construction

[0026] The protection switching method of the mobile communication system based on the C-RAN architecture provided by the present invention realizes the protection switching under the asymmetric protection condition under the C-RAN architecture, and all automatic switching / manual switching / forced switching meet the G.873.1 protocol, and the protection The switching time meets the requirement of less than 50ms. The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, in the present invention, the optical protection structure of the base station in the mobile communication system based on the C-RAN architecture includes an indoor BBU and an outdoor RRU, and the client-side optical module of the indoor service single disk 11 (TPX0601 single disk) is connected to the BBU , the optical module on the line side is connected to the multiplexing and demultiplexing board through t...

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Abstract

The invention discloses a mobile communication system protection switching method based on a C-RAN framework, comprising: when an los alarm is detected in the receiving direction of an indoor business disc line side laser, the indoor business disc line side laser is immediately turned off reversely and is then turned on, allowing an los alarm in the receiving direction of an outdoor business disc line side laser, the outdoor business disc line side laser is turned off reversely, the main and auxiliary line receiving directions of an indoor business disc meanwhile detect an los alarm, and receiving and transmitting are meanwhile towards another work channel; when detecting that an los alarm is detected in the receiving direction of the outdoor business disc line side laser, the outdoor business disc line side laser is immediately turned off reversely and is then turned on, the main and auxiliary line receiving directions of an indoor business disc meanwhile detect an los alarm, and receiving and transmitting are meanwhile towards another work channel. The mobile communication system protection switching method realizes protection switching of a C-RAN framework under asymmetrical protection conditions; all automatic switching / manual switching / forced switching meet a G.873.1 protocol, and protection switching time is less than 50 ms.

Description

technical field [0001] The present invention relates to a mobile communication system with a C-RAN architecture, in particular to a protection switching method for a mobile communication system based on a C-RAN architecture. Background technique [0002] Due to cost and technical reasons, a large part of the 4G wireless base stations currently built by operators use distributed base station technology in which BBU (indoor baseband processing unit) and RRU (radio remote module) are separated. The CPRI (CommonPublicRadioInterface, common public radio interface) interface protocol is used for communication between them. [0003] Since the traditional SDH / PTN / IPRAN equipment does not support the CPRI protocol and the rate is low, and the centralized deployment of the BBU causes the fiber resources in the BBU computer room to be tight, the C-RAN architecture mobile communication based on DWDM (Dense Wavelength Division Multiplexing) technology The system has gradually become the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04
CPCH04W24/04
Inventor 蒋小庆李娜戴斌肖奇
Owner FENGHUO COMM SCI & TECH CO LTD
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